CD and DVD Wheel Spacers Twenty Pack for Mousetrap Cars and Rubber Band Racers, Converts Hole to Three Sixteenth Inch Axle, Fits Standard Openings, Essential STEM Project Accessory for Classroom Builds

CD/DVD Wheel Spacers for Mousetrap Cars - 20 Pack
✔️ Converts CD/DVD hole to 3/16 in axle, 20 spacers included

These flexible rubber spacers fit inside standard CD/DVD wheel openings to convert the hole to a 3/16 inch axle, dampening small road bumps for a smoother ride in STEM builds. Great for mousetrap cars, rubber band racers, balloon vehicles, and other classroom projects. Made in the USA by Doc Fizzix.

✅ 20-pack CD/DVD spacers for quick classroom builds
✅ Converts CD/DVD hole to 3/16 in axle for a snug fit
✅ Flexible lightweight rubber cushions shocks for smoother rides
✅ Centers the axle to reduce side-to-side movement
✅ Ideal for mousetrap cars, rubber band racers, balloon vehicles and more

💡 What is a CD/DVD wheel spacer used for in STEM projects?

These spacers are handy for adapting common CD/DVD wheels to a standard axle while damping road irregularities.

• Improves wheel alignment on a 3/16 in axle
• Reduces energy loss by cushioning shocks for longer travel
• Centers the axle between the frame to minimize side-to-side movement
• Made in the USA for classroom reliability